Seiko Prospex 1968 Re-Issue Diver's Watch 55th Anniversary Limited Edition Mechanical Automatic Hi-Beat Professional 300 Diver's Watch
SLA039
(JDM Version Model: SBEX011)
Limited Edition of 1100 Pieces
Condition: New Old Stock (NOS) — authentic, unworn, original production. Please note: factory warranty may have expired due to the item’s production date.
The Seiko Diver’s 55th Anniversary Trilogy of Iconic Reissues
In 2020, Seiko honored the 55th anniversary of Japan’s first diver’s watch with a trilogy of re‑creations. At the heart of this celebration stands the Prospex SLA039, a piece that revives the spirit of the 1968 hi‑beat diver while introducing innovations that speak directly to today’s collectors.
The dial presents a blue‑grey gradient, echoing the fading light of the ocean as divers descend into deeper waters. It is a quiet yet powerful tribute to the mysteries of the sea, balancing elegance with purpose.
The SLA039 was the first diver’s watch to feature Seiko’s newly developed stainless steel, engineered for superior scratch and corrosion resistance. Its robust case and saturation‑diving capability ensure professional reliability. Inside, the 8L55 hi‑beat automatic movement, hand‑assembled in the Shizukuishi Watch Studio, delivers precision worthy of Seiko’s diver lineage.
Recognition followed swiftly: on April 14, 2021, the SLA039 received the iF Design Award, affirming its place as both a technical achievement and a design icon.
For collectors in 2026, the SLA039 is more than a commemorative release — it is a heritage re‑creation bridging past and present, embodying Seiko’s mastery of diver’s watchmaking. With limited production and award‑winning design, it remains a sought‑after piece for enthusiasts who value rarity, craftsmanship, and the enduring prestige of the Prospex line.
At WatchOutz.com, the SLA039 is presented not just as a watch, but as a collector’s milestone — a reminder of how Seiko’s diver heritage continues to inspire across generations.
SLA039 Specifications:
Movement
Automatic Hi-Beat
Caliber No: 8L55
Accuracy: -10/+15 Seconds per day rating in static conditions (at 5 ° C to 35 ° C)
Automatic winding (with manual winding)
Power Reserve: about 55 hours
Frequency: 10 vibrations per second
Jewel: 37
Exterior
Case Material: Everbrilliant steel
Glass material: Dual-curve sapphire
Glass coating: Internal non-reflective coating
Lumi Bright: Available (needle, index, bezel)
Band Material: Silicone band
Case size: Thickness 15.7mm, Diameter 44.8mm, Length 51.4 Mm
Weight 147g
Other Details
Waterproof for 300m saturated diving
Magnetic resistance: Yes
Screw-lock type crown
One-piece structure
Back lid serial number engraved
Reverse rotation prevention bezel
With calendar (date) function
Second-hand stop function
* Kindly note that the displayed image is either a graphic representation or a prototype and may not precisely reflect the final product. Color variations may occur due to differences in browsers, display settings, or devices used for viewing. Additionally, the orientation of the case back in the actual product may differ from what is shown in the photograph.